James Stefan Walker, M.D.
Family Medicine Physician · Corpus Christi, TX
James Stefan Walker, M.D. is a family medicine physician with a practice address in Corpus Christi, Texas, and NPI 1932218971, issued on Aug 30, 2006. Check the license (Texas M0334, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Stefan Walker
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- M0334 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6200 Saratoga Blvd Unit 5, Corpus Christi, TX 78414
- Phone
- (361) 225-2255
- Enumerated
- Aug 30, 2006
- Record last updated
- Apr 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 173045901 TX
- Medicare enrollment
- Enrolled (PECOS I20050309000539); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 6200 Saratoga Blvd Unit 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Harms, PACPhysician Assistant1104900646
- Pamela Smith, M.D.Internal Medicine Physician1083621866
Verify James Stefan Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M0334Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,483 Medicare Part D claims for 530 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 284 claims were for opioids.
Most prescribed
- Levothyroxine Sodium538 claims
- Atorvastatin Calcium394 claims
- Losartan Potassium379 claims
- Amlodipine Besylate334 claims
- Hydrochlorothiazide288 claims
- Ezetimibe246 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 89.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,101.81
66 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Corpus Christi Medical Associates, P.A.Corpus Christi, TX
- Shea Physical Therapy Specialists LLCCorpus Christi, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Stefan Walker among 11,119 family medicine physician records in Texas
James Stefan Walker, M.D. is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2002 · median 2004 among the 7,095 with a school on file
- Record last updated2012 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
193 family medicine physician records list a practice address in Corpus Christi
They are 193 of the 5,600 NPPES records with a practice address in Corpus Christi, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Corpus Christi → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Bolster, M.D.Corpus Christi, TX 784141033227723
- Catherine Bussieres, M.D.Corpus Christi, TX 784141619984457
- Crystal Campos Valls, M.D.Corpus Christi, TX 784141679508360
- Robert Caro, MDCorpus Christi, TX 784141316944903
- Baldemar Covarrubias, MDCorpus Christi, TX 784141033191135
- Brandon Hamisch, D.O.Corpus Christi, TX 784141841245552
- Horacio Hau, MDCorpus Christi, TX 784141386840197
- Marian Hendricks, D.O.Corpus Christi, TX 784141114915451
Common questions
What is James Stefan Walker, M.D.'s NPI number?
James Stefan Walker, M.D.'s National Provider Identifier (NPI) is 1932218971, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Stefan Walker, M.D. located?
The NPPES record lists a practice address at 6200 Saratoga Blvd Unit 5, Corpus Christi, TX, 78414. Phone: (361) 225-2255. Providers update this record themselves, so call before visiting.
How can I verify James Stefan Walker, M.D.'s license?
NPPES lists Texas license number M0334, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Stefan Walker, M.D. prescribe under Medicare Part D?
In 2024, James Stefan Walker, M.D. had 8,483 Medicare Part D claims for 530 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is James Stefan Walker, M.D.'s MIPS final score?
The 2023 MIPS final score is 89.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.